All Things are Possible

With a stout heart a mouse can lift an elephant.
Tibetan Proverb

Jesus said unto him, If thou canst believe, all things are possible to him that believeth.
Mark 9:23

And Jesus looking upon them saith, With men it is impossible, but not with God: for with God all things are possible.
Mark 10:27

Even the smallest person can change the course of the future.
Galadriel, The Lord of the Rings: The Fellowship of the Ring

There a lot of truly amazing things that have been accomplished by people individually and as groups throughout human history. Most of the time it just required a person with enough motivation, tenacity, or ambition to start.

A long journey is taken one step at a time. A wall is built one brick at a time. A mountain can be moved one spoonful of dirt at a time. If you have determination, most tasks can be overcome.

Faith is more difficult to quantify and measure. Our obedience to God's laws are to a certain extent a measure of our faith. But I think the key factor in accomplishing great things through faith is to try. By exercising our faith we make our faith stronger. If we never try anything that challenges our faith or make sacrifices that require us to go out of our comfort zone, our faith will not grow.